作為等同于Java的wait,notify,notifyAll的存在，AutoResetEvent和ManualResetEvent分別實現了notify和notifyAll的功能，下面的代碼簡單講解了一下實現原理，并展示了這一過程。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ThreadTest
{
    class Program
    {
        //新建一個默認無信號的手動重置線程事件
        private void Test()
        {
            ManualResetEvent manualResetEvent = new ManualResetEvent(false);
            AutoResetEvent autoResetEvent = new AutoResetEvent(false);
            //線程傳參需要通過ParameterizedThreadStart委托，并在Start時附加參數。
            new Thread(new ParameterizedThreadStart(MyThreadHandler)).Start(new ParamStruct("Thread1", manualResetEvent));
            new Thread(new ParameterizedThreadStart(MyThreadHandler)).Start(new ParamStruct("Thread2", manualResetEvent));
            new Thread(new ParameterizedThreadStart(MyThreadHandler)).Start(new ParamStruct("Thread3", autoResetEvent));
            new Thread(new ParameterizedThreadStart(MyThreadHandler)).Start(new ParamStruct("Thread4", autoResetEvent));
            Thread.Sleep(1000);
            //manualResetEvent在Set方法中，會讓信號狀態從無到有，從而讓所有wait狀態的線程喚醒，實現NotifyAll
            manualResetEvent.Set();
            //autoResetEvent在Set方法中，會在第一個處于wait狀態的線程喚醒后將信號狀態Reset，變為無信號，實現NotifyOne
            autoResetEvent.Set();
            Thread.Sleep(1000);
            autoResetEvent.Set();
            Console.ReadKey();
        }
        static void Main(string[] args)
        {
            new Program().Test();
        }
        private void MyThreadHandler(object obj)
        {
            if (obj is ParamStruct paramStruct)
            {
                Console.WriteLine(paramStruct.threadName);
                paramStruct.resetEvent.WaitOne();
                Console.WriteLine(paramStruct.threadName + " finished on " + DateTime.Now);
            }
        }
    }
    class ParamStruct
    {
        public string threadName;
        public EventWaitHandle resetEvent;
        public ParamStruct(string threadName, EventWaitHandle resetEvent)
        {
            this.threadName = threadName;
            this.resetEvent = resetEvent;
        }
    }
}